For Christmas a last year my wife bought me a temperature probe from QKits. It uses a three wire sensor. When I got the kit it was in pieces, and I needed to assemble and solder it together. Don’t worry, you can buy it fully assembled. It uses a serial connection to connect to a computer. I had an old laptop sitting around and installed Ubuntu. Sure, I could have used M$ Windows, but I have principals. After spending some time with Google, I found Quozl, who had some source code for a program to retrieve temperatures and put them into a file. I then scripted a way to add the temps to a MySQL database and to also upload the temps to both my website (seen above), and to Twitter. Using cron, the computer updates the website every fifteen minutes, and Twitter once an hour.
Tweeting was not as easy. As a result of Twitter switching to OAuth, I wrote a Java utility to post the tweet. I used an example from http://apiwiki.twitter.com/w/page/22554657/OAuth-Examples.
I was contacted by Amber McArthur to be a guest on Net@Night. I talked with Amber and Leo Laporte about the fridge.